feat(skills): add qmd skill for vault search and memory, deprecate SQLite memory
- Add skills/qmd/SKILL.md: qmd-based knowledge retrieval and memory system - Search workflows: BM25, vector semantic, hybrid+rerank modes - Memory write patterns via direct filesystem writes to ~/CODEX/80-memory/ - Session summary workflow for capturing work at session end - Auto-recall pattern for context injection at session start - Deprecate skills/memory/SKILL.md: SQLite-based memory replaced by qmd - qmd provides superior hybrid search over entire vault - No external OpenAI embedding dependency - Uses local GPU (7900 XTX) for embeddings and reranking - Update skills/obsidian/SKILL.md: remove memory search sections - Memory search now handled by qmd skill - Keep CRUD operations and daily notes functionality - Update integration table to reference qmd Related: CODEX vault updated with memory template, session-summary template, and sessions directory. qmd collections and context annotations configured.
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@@ -218,7 +218,8 @@ curl -X POST "http://127.0.0.1:27124/create-note" \
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| Research note | research | Save research findings with tags |
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| Project note | task-management | Link tasks to project notes |
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| Plan document | plan-writing | Save generated plan to vault |
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| Memory note | memory | Create/read memory notes in 80-memory/ |
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| Vault search | qmd | Search vault content via qmd hybrid search |
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| Memory note | qmd | Create/read memory notes in 80-memory/ |
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## Best Practices
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@@ -232,97 +233,15 @@ curl -X POST "http://127.0.0.1:27124/create-note" \
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---
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## Memory Folder Conventions
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## Memory System
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The `80-memory/` folder stores dual-layer memories synced with Mem0.
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Memory storage and retrieval is handled by the **qmd skill** (`skills/qmd/SKILL.md`).
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### Structure
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- **Search**: Use qmd for searching vault content (hybrid BM25 + vector + reranking)
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- **Write**: Use this skill's REST API or direct filesystem writes for creating/updating notes
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- **Structure**: `80-memory/` folder with subdirectories (preferences, facts, decisions, entities, other, sessions)
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```
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80-memory/
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├── preferences/ # Personal preferences (UI, workflow, communication)
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├── facts/ # Objective information (role, tech stack, constraints)
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├── decisions/ # Choices with rationale (tool selections, architecture)
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├── entities/ # People, organizations, systems, concepts
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└── other/ # Everything else
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```
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### Naming Convention
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Memory notes use kebab-case: `prefers-dark-mode.md`, `uses-typescript.md`
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### Required Frontmatter
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```yaml
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---
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type: memory
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category: # preference | fact | decision | entity | other
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mem0_id: # Mem0 memory ID (e.g., "mem_abc123")
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source: explicit # explicit | auto-capture
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importance: # critical | high | medium | low
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created: 2026-02-12
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updated: 2026-02-12
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tags:
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- memory
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sync_targets: []
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---
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```
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### Key Fields
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| Field | Purpose |
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|-------|---------|
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| `mem0_id` | Links to Mem0 entry for semantic search |
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| `category` | Determines subfolder and classification |
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| `source` | How memory was captured (explicit request vs auto) |
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| `importance` | Priority for recall ranking |
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---
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## Memory Note Workflows
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### Create Memory Note
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When creating a memory note in the vault:
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```bash
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# Using REST API
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curl -X POST "http://127.0.0.1:27124/create-note" \
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-H "Content-Type: application/json" \
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-d '{
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"path": "80-memory/preferences/prefers-dark-mode.md",
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"content": "---\ntype: memory\ncategory: preference\nmem0_id: mem_abc123\nsource: explicit\nimportance: medium\ncreated: 2026-02-12\nupdated: 2026-02-12\ntags:\n - memory\nsync_targets: []\n---\n\n# Prefers Dark Mode\n\n## Content\n\nUser prefers dark mode in all applications.\n\n## Context\n\nStated during UI preferences discussion on 2026-02-12.\n\n## Related\n\n- [[UI Settings]]\n"
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}'
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```
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### Read Memory Note
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Read by path with URL encoding:
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```bash
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curl -X GET "http://127.0.0.1:27124/read-note?path=80-memory%2Fpreferences%2Fprefers-dark-mode.md"
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```
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### Search Memories
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Search within memory folder:
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```bash
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curl -X GET "http://127.0.0.1:27124/search?q=dark%20mode&path=80-memory"
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```
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### Update Memory Note
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Update content and frontmatter:
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```bash
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curl -X PUT "http://127.0.0.1:27124/update-note" \
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-H "Content-Type: application/json" \
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-d '{
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"path": "80-memory/preferences/prefers-dark-mode.md",
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"content": "# Updated content..."
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}'
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```
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See the qmd skill for memory workflows, session summaries, and auto-recall patterns.
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---
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191
skills/qmd/SKILL.md
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191
skills/qmd/SKILL.md
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@@ -0,0 +1,191 @@
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---
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name: qmd
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description: "Knowledge retrieval and memory system via qmd (Query Markup Documents). Use when: (1) Searching knowledge vault for relevant context, (2) Storing memories, decisions, preferences from sessions, (3) Auto-recall of relevant context at session start, (4) Writing session summaries, (5) Querying past decisions or project context. Triggers: 'remember', 'recall', 'search vault', 'what did we decide', 'session summary', 'qmd', 'knowledge', 'memory', 'context'."
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compatibility: opencode
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---
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# qmd
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Primary retrieval + memory workflow using qmd v2.0.1 over the already-indexed `qmd://CODEX/` vault.
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## Prerequisites
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- `qmd` installed globally and available in `PATH`
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- `CODEX` collection configured and indexed
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- Vault at `~/CODEX/` with memory folders under `80-memory/`
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Verify runtime state:
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```bash
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qmd status
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```
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## Search Workflows
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Default to `qmd query` unless a narrower mode is clearly better.
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### 1) BM25 Keyword Search (Fast)
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Use when exact terms, filenames, tags, or known phrases are likely present.
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```bash
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qmd search "query"
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qmd search "query" --md --full -n 5
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qmd search "query" --json -n 10
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qmd search "query" -c memory --md -n 5
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qmd search "query" --min-score 0.3 --all --files
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```
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### 2) Vector Semantic Search
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Use when the concept is known but wording is uncertain.
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```bash
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qmd vsearch "query"
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qmd vsearch "query" --md --full -n 5
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qmd vsearch "query" --json -n 10
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qmd vsearch "query" -c memory --md -n 5
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qmd vsearch "query" --min-score 0.3 --all --files
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```
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### 3) Hybrid + Rerank (Best Quality, Default)
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Use for high-confidence retrieval, ambiguous queries, and session bootstrap.
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```bash
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qmd query "query"
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qmd query "query" --md --full -n 5
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qmd query "query" --json -n 10
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qmd query "query" -c memory --md -n 5
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qmd query "query" --min-score 0.3 --all --files
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```
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## Document Retrieval
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Use retrieval commands after search to pull exact documents.
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```bash
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qmd get "path/to/file.md"
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qmd get "#docid"
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qmd multi-get "80-memory/sessions/*.md"
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qmd multi-get "file1.md, file2.md"
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```
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## Memory Write Workflows
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qmd is read-only. Write memory notes directly to filesystem, then re-index.
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Memory note file pattern:
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```bash
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~/CODEX/80-memory/{category}/{slug}.md
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```
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Required frontmatter:
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```yaml
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---
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type: memory
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category: preference # preference | fact | decision | entity | other
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source: opencode # opencode | manual
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importance: medium # critical | high | medium | low
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session: # opencode session ID for traceability (optional)
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project: # [[Project Name]] if project-specific (optional)
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created: YYYY-MM-DD
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updated: YYYY-MM-DD
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tags:
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- memory
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- preference
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---
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```
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Content template:
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- `# {Title}`
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- `## Content` → concise factual memory
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- `## Context` → when/why captured
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- `## Related` → WikiLinks to related notes
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Category decision guide:
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| Signal | Category | Example |
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|--------|----------|---------|
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| "I prefer...", "I like...", "Always use..." | preference | Prefers Nix over Docker |
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| "We use...", "The stack is...", "My role is..." | fact | Tech stack is NixOS + TypeScript |
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| "Let's go with...", "We decided...", reasoning about choices | decision | Chose qmd for memory retrieval |
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| Person name, org, system, API | entity | Tobi Lütke - Shopify CEO |
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| Doesn't fit above | other | |
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## Session Summary Workflow
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Write at session end or when explicitly requested.
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Session file pattern:
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```bash
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~/CODEX/80-memory/sessions/YYYY-MM-DD-{slug}.md
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```
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Frontmatter:
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```yaml
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---
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type: session-summary
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created: YYYY-MM-DD
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session: # opencode session ID
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project: # [[Project Name]]
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duration: # approximate
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tags:
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- memory
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- session
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---
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```
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Content template:
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- `# Session: {Brief Description}`
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- `## What Was Done` → completed work bullets
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- `## Decisions Made` → decision + short rationale (+ WikiLink if significant)
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- `## Open Questions` → unresolved items
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- `## Files Changed` → key file list + one-line deltas
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- `## Next Steps` → next executable actions
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## Auto-Recall Workflow
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At session start, proactively retrieve context before deep work.
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1. Determine project/task context from working directory, git repo, and user goal.
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2. Retrieve general relevant knowledge:
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```bash
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qmd query "{relevant context}" --md --full -n 3 -c CODEX
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```
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3. Retrieve project memory context:
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```bash
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qmd query "{project name}" --md -n 3 -c memory
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```
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4. Inject only relevant excerpts; cap recall to ~2000 tokens.
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This workflow is advisory and should be run proactively by the agent.
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## Re-indexing
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After creating or editing memory/session files, update index for immediate recall.
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```bash
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qmd update
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```
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Indexing also runs periodically; use manual update when immediate searchability is required.
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## Integration with Other Skills
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| From | To | Pattern |
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|------|----|---------|
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| qmd search | Any skill | Retrieve relevant context before starting work |
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| brainstorming | qmd write | Save brainstorm decisions as memory notes |
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| Any session | qmd write | Capture session summaries at session end |
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| qmd search | obsidian | Find note to update, then use Obsidian skill for CRUD |
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